Extron electronic MSW 4SV RS, MSW 4V rs manual NOTE Connect a ground wire between the switcher

BRS-232 connector — Connect a cable with a 3.5 mm, 5-pole captive screw connector to this port for bidirectional RS-232 communication. Wire the connectors as shown below.

NOTE: The Tx pin on the switcher connects to the Rx connector on the PC; the Rx pin on the switcher connects to the Tx connector on the PC.

		Rear Panel RS-232 Port
				NOTE: Connect a ground wire between the switcher
Tx Rx
				and the computer or control system. If you
				use cable that has a drain wire, tie the drain
				wire to ground at both ends.
	Green	Ground
	Orange
		Rx Receive	Transmit (Tx) 3
	Red
		Tx Transmit	Receive (Rx) 2

9-pin HD

Connector

To Computer

Figure 4. RS-232 Connector Wiring

This port has the following RS-232 protocol:

•9600 baud

•1 stop bit

•No parity

•8 data bits

See “Command and Response Table for SIS Commands” on page 19 for the SIS commands used to communicate with the MSW switcher with RS-232.

CONTACT

1 2 3 4

CContact connector — Connect a remote contact closure device to the MSW for remote control of the switcher. You can also daisy chain the unit to other MSWs using this 5-pole captive screw connector. This allows remote control of the other switchers.

NOTE: The switcher must be in normal (manual) mode for contact closure to work (see “Mode Selection” on page 8).

To select an input using a contact closure device, such as an Extron CCR 204 Contact Closure Remote Control or a locally constructed device, momentarily short the pin for the desired input number to logic ground (pin 5). To force one of the inputs to be always selected, leave the short in place. The short overrides any front panel input selections.

You can also daisy chain multiple MSWs by using the contact connector. This allows for front panel control of all switchers (for example, touch the input button on one MSW to switch all MSWs). Wire pin 1 to pin 1, pin 2 to pin 2, and so on.

DS-video output (MSW 4SV rs only) — Connect an S-video display or other device to this 4-pin mini DIN connector for the S-video output.

ES-video inputs 1 through 4 (MSW 4SV rs only) — For each input, connect an

S-video source to one of these 4-pin mini DIN connectors.

MSW 4V rs and MSW 4SV rs • Panel Features 5